SPOILER]What are the force powers that cannot be acquired through normal ways?

[Sergio1992]

I saw there are some powers that have this icon: ?
How can I acquire them? I have already acquired one of them on dxun (beast trick), and for the others?..

[Loki[D.d.G]]

SPOILER You will acquire them as you progress through the game. So, juts be patient.

[GawainBS]

Some of those powers depend on your conversation choices, which can be hampered by bugs.
SPOILERS:
I'm thinking of the Force Vision power from Visas, for example.
The Force Breath/Poison Immunity is bugfree.
You already got Beasttrick.
Kreia learns you Prescience or something like that on Peragus. (The "you better quicksave now" power.)
If you're male, Handmaiden gives you WIS to Defense. It's also considered a Force Power, IIRC.

There are others, though.

[Loki[D.d.G]]

SPOILER You will also get one of two force powers when you visit the rebuilt Dantooine. If you choose the LS path, you get Force Enlightenment and DS nets you Force Crush instead.